BIMdustrial Plant: The History of an $800 Million Petrochemical Plant

ELISA BACCHI: Good morning, everybody. And thank you for choosing our lesson. I will do just a short introduction just for explaining our scope of work and Maire Tecnimont Group. Then we will launch one video, and then Marco Mellacqua will present the main lesson.

And Elisa Bacchi's speaking. I'm group leader in Maire Tecnimont Group since 2006. And I'm leading for my company in BIM system modeling management and implementation. And Marco Mellacqua is one of our best BIM coordinators, specialized in particular in reinforced concrete design, BIM reinforced concrete design, and the main trainer for our [INAUDIBLE] Center located in India in Mumbai.

Maire Tecnimont group is a multinational and multicultural company compounded by several sister companies. We are almost 8,000 people around the world. We cover with 50 companies in 40 countries. And our scope of work is industrial plants.

We deliver industrial plants following the entire cycle of the project, from feasibility up to basic construction design, material procurement, and up to commissioning, mechanical completion, commissioning, and giving to the client the plant before startup. And our plant, in particular our developed delivered on petrochemicals, oil and gas fertilizer, and power generation plants.

Now we will see one video that summarizes for you our main challenge to introduce BIM technologies inside the planned design. And the KZ story will be presented by Marco later. It will be a megaproject in located in Oman. Orpic is our client.

And just seeing this video, you can understand which [INAUDIBLE] from our side has been done, starting in particular for implementing the mythologies since 2015. And now we are fully in construction, delivering almost 6,000 drawings and covering all of the [INAUDIBLE] from under ground, foundation from PAL Foundation, concrete elevation, and buildings.

And this structure for a industrial plant delivery. And using [INAUDIBLE] tools in inter-parabola, we've drawn some [INAUDIBLE] plan design using intergraph. You can see, in these [INAUDIBLE] scale about our plants. And what this video is showing really is the progress on the project at 13% of engineering.

And behind all these objects there is a real start to solve engineering on the dating. Now Marco will proceed with the presentation. Enjoy.

MARCO MELLACQUA: Thank you, Elisa, for the introduction. Thank you all for being here today with our class. OK, let's go first to the learning objective of this class. OK, the main point we are going to her will be discovering how BIM approach has been integrated in our company for industrial plant design.

Learn how to use Revit and Dynamo to manage the similar structural design for industrial plants. Understand the productivity gained utilizing the BIM approach. And discover how this potential benefit can be capitalized on a real megaproject like an industrial plant.

Here we can see the summary of the class we will walk through. The standard practice in the industrial plant market, the BIM challenge we faced with the 800 million project, Revit and Dynamo for civil design from the point of view of each civil subdiscipline, the interdisciplinary coordination, data management, the BIM value, and we briefly discuss also the overall benefits and difficulties faced in this challenge.

OK, the industrial plant market is not new to 3D modeling. Instead the [INAUDIBLE] on the 3D model is an old and standard practice driven by contractual requirements. For example, note there is one contractual document, the specification, for 3D modeling in which are defined in which that 3D modeling is [INAUDIBLE].

For example, the main point discussed in the specification for 3D modeling are the 3D model tool to be used. Usually a specification the 3D modeling for piping of [INAUDIBLE], like inter-graph tool or available tools. Then the modeling convention, so unit of the dimension for example. Coordination system for F coordinated models.

The modeling items-- that means what we need to model and which is the level of detail of this modeling. The material specification. The interference detection process, how it has to be run. The deliverables. Which deliverables we need to extract from the 3D model and how is set up the contractor 3D model review.

So let's speak about this topic. The 3D model review is usually performed by novice work in the industrial plant market. And that stage can be summarized in 30% model review. The main scope is to approve the layout of the plant, the plot plant, the [INAUDIBLE] layout, and review all main aspects of safety, installation, constructability, maintainability, and obviously the adherence to process license acquisition requirements.

Then the 60% model review is the second step. Approve the design. So approving and releasing structural details, instrument telecommunication and electrical routings, piping isometrics, piping general arrangements. And then the last step of the contractual 3D model is 90% [INAUDIBLE] the model review, in which it's shown to the client the model as it is completed, and ensured that all previous comments have been integrated, has been included and resolved.

Here we can see some typical output of a 3D model review with snaps, with tag number, with remarks. And from this, each discipline involved in plant design take action and solve the issue coordinating, obviously, the design. Let's go out now and see which is the traditional workflow of our company, but I suppose of most companies.

Piping discipline is unique to 3D model player and owner. Instead the civil design is developed fully through the AutoCad or MicroStation. And the modeling happens only in later stage, for as built model delivery means only geometrical. No information node data management from the 3D model.

Then comes BIM with it's embedded challenge. And to face the challenge obviously planning is a necessity. Here we can see the BIM development in Maire Tecnimont platform to here from 2015 and 2017, in which we can see the main development has been civil object library and tagging development targets. Standard tagging, we could say.

Project startup, so how to organize template. Tool training. BIM project organizational chart. Development of specification and standard outputs. Then information management. So freeze the data set related to each single object. And obviously the software customization that improves and speeds up the design process. But which was the right project for the BIM challenge?

We had a fantastic opportunity to take the challenge on our, we could say, signature dish, the petrochemical plant. And the client, this is on the table, the client is Orpic, an old company. The contract is the realization of a polyethylene plant and a polypropylene plant on an EPC basis. Engineering, procurement, and construction. Value of the contract, $895 million dollars.

Where is located our BIM challenge? Our BIM challenge is in Oman at Sohar near to Muscat. Let's see in plant, which is the layout of our BIM challenge? We can see a utilities and offsite area in green. The polypropylene process unit, the polyethylene unit, and the big logistic area for the a big product warehouse, for an overall planned development of 350,000 square meters.

So let's [INAUDIBLE] state of the process are a PE unit. Two units designed to produce 880,000 tons per year of HPDE and LLDPE. This unit includes also an extrusion building, a blender product silos, and some auxiliaries, buildings and structures necessary for the operation of the plant.

Instead the PP unit, polypropylene unit designed to produce 300,000 tons per year here also in this case is included in this unit. Extrusion building, a product blender silos, and some auxiliaries. Some are also in common with the polyethylene plant with the other part of the project, such as the electric substation and auxiliary structures.

Now let's understand our split engineering weights on this project. From this pie chart we can see, we can easily see that the main actor obviously is piping with 33% of the pie chart. But located in second position there is civil and structural design with 24% of the main hours. And let's see how this-- but also the construction weights.

In this case, the mechanical wards consist of 34% of construction weights. But the civil wards together with still structure wards, together with tiling, together with site preparation, cove an overall weight of 40% of construction hours. So we can speak about a civil BIM challenge, yet you can see an artistic picture of the plant which we are talking today about.

And I can not give you the numbers, but I can give you some comparison data. So extension in plant can be compared to 49 soccer fields. To build this plant we need 8,000 concrete trucks, and the steel amount of this plant can be compared to around three Eiffel Towers. And I'm not speaking of Eiffel Tower of Las Vegas. I'm speaking about the Eiffel Tower of Paris.

So we can speak about the civil BIM revolution, which is the main actor, which is the hero of this revolution. It is obviously Revit that is used in this project for performing engineering activities such as site preparation, piling, piles, sorry, reinforcement concrete, underground utilities, road and paving, and buildings. You can see here the black sheep of the steel structure design that is Tekla.

So it's revolution, but it's also evolution. Why this? The build evolution revolution but from an evolution that can be identified with a big effort in library development. So we have turned company standards in to Revit libraries with parameters with a particular material library and with most important tagging convention to identify this object inside the plants. This is the company standard that is being implemented, project by project, with the client's requirements for that project.

Why do this? Why this kind of standardization? Because we need to push standardization from the construction point of view. Because schedules are very tight so we need to speed up the work at site. Let's see now the civil team of this BIM challenge. 15 people in our headquarters in Milan, 80 people in our sister company in Mumbai, and five people at site coordinating site's activities.

ELISA BACCHI: For managing engineering.

MARCO MELLACQUA: Si, si. Only for engineering activities. Let's see, now. Let's move on civil BIM roles and responsibility. The success of the project of a BIM implementation relies basically on people involved in the project. So roles. Defining proper roles, defining proper responsibility it is very important. So we have identified for example BIM engineers for that civil model authoring of main items like structures, buildings, single structures of steel.

Then BIM lead engineers that coordinates this item model production for subdiscipline. And BIM coordinators that merge all these BIM assemblies in their unique civil master models that then comes into the final engineering plant engineering model. So here is how is structured our BIM organizational chart, we can see.

We have seen before the main actor is Revit and obviously it's partner Dynamo to perform civil design. Lets start with the practical part of the class now. Dummy modeling. What means dummy modeling? Dummy modeling means preliminary modeling in order to include all these steps.

Preliminary sizing which is performed by structural engineer on basis, based on offers and based on experience, prepare some input that then am elaborated by the BIM engineers. With preliminary model authoring we can see here several types of structure. It can be foundations, substation, by brakes, basins. And the dummy model is marked, and later we will see why it is so important with the civil item tag and description.

This hollow has to have a VIP model. Visualization, information, and preliminary quantities in the earlier stage. Now we have a problem with those videos, so I will show you the dummy modeling. Which is the purpose of dummy modeling?

In less than one month we built this model in order to issue the equipment layouts. Equipment layouts are the drawings that root a design of an industrial plant. Now here we are going to see maybe some examples like this, like this. Is the input for each discipline involved in plant design. Here we can see again, process units for PP, process units for the auxiliary structures.

From dummy modeling to equipment layout. From practical point of view how we move. Each civil item is modeled, exported, converted and appended in the plant model. How? From Revot through IC format, passing from SmartPlant internal publisher that referenced these models inside inter-graph Smart 3D, that is the main tool by contract for piping design. And also Tekla goes directly in to Smart 3D environment.

Civil models concur from early stage in the equipment layout definition. And this allows a design optimisation process of the layout. How we perform this publishing on a daily basis, Naviswork design reviews to all disciplines. So in the early stage, the plant is growing and growing from day by day from different point of view, from different plans and point of view.

So here we can see some example of optimisation and early clash detection that, on a traditional workflow, so 3D workflow, cannot easily be identified as you can see here. And improve, speed up the layout in a properly accumulative definition helps engineering hours, and so saves money. OK, let's move now on engineering activities performed with Revit.

I say that site preparation has been developed fully in Revit. Is this the right tool? Maybe not. Maybe Civil 3D is more appropriate for this developing, but we had the chance to test Revit on a flat situation of the plant. And here we can see site preparation is always first drawing that is issued in the civil design. And usually, due to tight schedule, the layout side is still ongoing.

So how will Revit help us in identifying embankment preludes with names with preliminary quantities. So make preliminary analysis. Here we can see design optioneering and facing, analysis on preliminary quantities, and optimized embankment sizing in accordance to dummy modeling. So from this, for example, to this.

And this estimation process helps us in respecting the budget for the site preparation. Also this is the view I will show you. This is the status of the preparation. All embankment with names with quantities. From the model, reaching from the model to reality.

Moving on, piling and concrete design. How will-- our approach on piling and concrete design as well as for architectural design passed from families and whole data embedded inside up to main item model, so single structure model, up to assembly model. So each single main item model is single is linked inside an assembly model for managing the data. For example, of area, not just of structure.

From dummy models we move to construction drawings. This is am examples. For example, files our model inside single structure by the drawing are extracted from assembly, because we need to have the picture of a particular area, a particular WBS area.

Others drawings. We have performed formic and enforcement drawing of pipes, so quite simple structure, but also of complex building such as blender silos. And here we can see some deliverables you can see. Example deliverables. Enforcement, form work, all done through Revit, extracted from Revit.

How we have achieved this? With the standardization, obviously. Each view that you see on these sheets is ruled by a particular view template in order to reduce at minimum the detailing part. And to have proper outflow, obviously.

We're now on concrete design coordination. Let's see these example critical items. As you can see, this building several, several pipes, electrical routing, are passing from bottom to top. There are several supports for steel structure and for equipment. So the coordination of this structure has been helped by the BIM modeling in order to ensure proper drawing.

These always passing through families, standard families. Also for example for simple things like cut out. With proper marking, with proper dimensioning, with properties. And so for example discipline or status. So in this way I can immediately understand which cut out is under who and who is the owner of the information in order to push him to give me this information to release the drawing without holds and to speak, obviously the work site.

Coordination also with Tekla models through IFC format. Here we can see we have linked IFC files of Tekla inside Revit and vise versa in order to check the interface point, such as baseplate, length, projection length of anchor boat, position of the anchor boat, position of the embedded plates for the steel members. So in order to have a coherent design and coherent BIM models and obviously coherent deliverables.

As we have said before, we not model only form. We model also enforcement. Some people say this is time wasting procedure, but we do not agree to this. In fact in the traditional [INAUDIBLE], for example, 30% of the man hours of the detailed engineering is spent into producing BBS, bar-bending schedule, we can say by hand with several mistakes with several inaccuracies, we can say.

We have modeled rebuffs in order to get automatic bar-bending schedules, but also to clarify potential issue related to congested nodes aside. The detailed view finally can be placed on drawing in order to explain properly to the subcontractor how we want the development of this node. So saving time also for subcontractor standing, showing him what we want from him.

Those are not just words, we can say. This BIM model then goes to fields, and here we can save some pictures for the water tank of the plant. A typical cage for columns, anchor boat and shaky pockets and bed plates. The construction of the blender silos of the PPE area. Again, equipment foundation.

OK moving on, we move from concrete to underground utilities, road and paving design. As you can imagine, a layout of 350,000 square meters involves a lot of complexity in the underground. A lot of pipe routings, a lot of bar trenches, and a lot of systems.

ELISA BACCHI: Electrical.

MARCO MELLACQUA: Electrical also, yes. We successfully pushed Revit over its limits to perform underground routing for industrial plant, covering all the system, basically. This has been possible because we have developed smart families with smart connectors that can follow predefined design rules. But about this, I can't tell you more.

Because if you want to know more, you have to join the session of my colleague, Luca [? Vierno. ?] The smart pit boost, your plant underground utilities design with Revit and Dynamo. That is dedicated to this particular task in the industrial plant. Also in this case, from dummy modeling to the construction drawings.

The dummy modeling has been used for the, you can say, conceptual routing underground. But then we extract from Revit obviously drawings, layout, of area conceptual layout with schedules in which each single piece that is modeled is coming out from the model into the schedule. In to a Revit schedule.

ELISA BACCHI: Revit [INAUDIBLE] fabrication.

MARCO MELLACQUA: Yes. Basically for push prefabrication for speed up activity at site. And you're seeing obviously in the drawing in that foundation. We have linked inside underground model the foundation item, each foundation out and in order to perform the best routing underground in order to reduce errors, to reduce mistakes, to reduce inconsistencies.

Also because underground is always under developing. So linking foundation models helps us find this kind of situation, and with the dragging, solving in less than one second, basically. And for example this situation, if you see on the drawing in plant I can think, these pipes is running above the slabs. But here we can see that is cutting the slab.

So all the situation are checked day by day during the development of the engineering. Also here, not just walls but in fact the pilot project we have done, small pilot project before this big, big challenge give us a great feedback from site for the underground modeling.

ELISA BACCHI: Very few satisfaction.

MARCO MELLACQUA: Very few satisfaction from site. In comparison to other plant, this is our main problem of civil design and civil construction. Also for architectural part, from dummy models to construction drawings. Also you have the importance of standardization, pushing standardization for families. Not only notable families but also system families.

Wall, floor, roofs, but also door, windows, helps us get the exact quantities, the exact counting--

ELISA BACCHI: Finishing.

MARCO MELLACQUA: --of the modeling, of the finishing. Here we can see some example of the drawing extracted from Revit for the architectural design. And the for the most we can see that the plus of Revit is not only to create deliverables, but also to make easy to create rendered view like this. That helps communication, especially with clients, especially for approval process, especially in the building site.

Let's move that in to the ship [INAUDIBLE], in to the ship [INAUDIBLE] coordination, sorry. Too squad check environments after BIM introduction. Traditionally, the squad check was fully performed on paper with red pen and stamped in order to check the deliverable produced and to enhance coordination between discipline. But now, with the introduction of BIM, together with the drawing, we need, is mandatory, to provide to the discipline, to piping discipline, also the model to reference inside the plant model.

So two squad check environment to enhance coordination between model and drawing. And the same for clash detection. Also clash detection has evolved. Because previously it was fully developed by piping into the 3D model authoring tool with some automation. But now we have moved only above ground clash check into piping department.

The below ground clash check is performed daily by underground design as we have just now seen. So this helps us a lot. Let's now see the management and planning value added from BIM with a proper BIM workflow. The civil database, the project database, the Revit assembly.

As we have said before, the assembly is the collector of data of each subdiscipline. And this helps us monitor and manage key quantities and monitor project quality indexes, and help the management of the subcontractors corporate work, help accounting process, project planning, constructability analysis, and monitor and determine the project progress of the single submission.

So let's move on. Key quantities monitoring and management is the first aspect, we can say. Directly from the assembly, of which you can see, for example one picture in the background, we can extract item by item together which is the exception. So that's why it's so important, the tagging convention the quantities related to each item.

Item by item are also dedicated to a particular WBS area of the project. So concrete related to area WBS of the project. But not only concrete, also reinforcement, because we model reinforcement, anchor boats, embedded plate, and much more. And also for example part coordinate lists for each single, WBS area inside the model and much more.

So as deep as your modeling, as deep as can be the information you can extract directly from the assembly model. Let's speak now about indexes monitoring, design quantities optimization and monitoring. We have said before, one sector, this is for example loop reactor sector, we have enforcement quantity and concrete quantity.

Dynamo helps us connect this data and this data together into an Excel formatted sheet in order to get, here you can see, in order to get the ratio of reinforcement and concrete. So identifying a very good design, perform design, normal design, and some over reinforcement, over reinforcing of the item in order to take action and optimize the item of the concrete model.

Subcontractor management. See here, this is more area. All these black are embedded plates. There are hundreds of embedded plates [INAUDIBLE] like rebuffs also. Hundreds of rebuffs, single structure and in area. This, the damaging construction documentation and the material procurement process is affecting obviously the shape.

But thanks to the BIM modeling, we can anticipate subcontractor quantities in order to help--

ELISA BACCHI: [INAUDIBLE]

MARCO MELLACQUA: Helical chasing. But establishing some tolerances on what we are declaring to subcontractor. We have also pushed Revit over its limits with accounting automation. We have created one plugin in order to extract from each single object, from each single family, that accounting sheet. That is a tedious work, to create an accounting sheet.

How we have done this? Price code connected to Revit libraries, we have test the workflow with Dynamo, and thanks to one we can say expert coder that knows also Revit API, we have created these plug-in that then reverse through VBA, Excel macro basically, reverse data into this formatted output, saving a lot of time of this activity. Project planning.

What about project planning? As we have just now seen, to which item is associate quantity. So that realization can help who is making the planning understand which structure can plan for the next month and which is the concrete volume related. So low concrete medium and high concrete quantity in order to respect also the plan with progress of the project.

Then constructability. Always initiate a scenario of site support. So supporting the site activities. And also in the scenario of that initialization, to each object we have assigned a engining status that can be IFC or maybe hold. So from this view, you can easily understand, what can be built by the city subcontractor? And which of the formations that are still pending?

So this helps us a lot in the communication with the subcontractor in defining properly the scope of the subcontractor. Then project progress. Moving on, we have built also a tool through Dynamo that links our model to the progress clause, concrete progress clause. That is the tool for understanding the progress of the design, of the CV design.

We have said Dynamo linked to the assembly model. In this way we have the possibility to simulate the core at date based on reliable quantities. They are the quantity related to each single item model. But also on this task I can suggest you to take part to the session, 80,000 cubic meters of concrete, Revit and Dynamo for project managers, in which my good colleague, Fabio, will show you step by step this implementation.

Then constructability. BIM models also help constructability analysis. Like this, this is a loop reactor. And all this information become a sort of database of the company. Then I will show you also simulation. For the simulation, the status of each item, the quantity also related to schedule. So simulate part of the plant particulars that will be as to check constructabilities.

Because constructabilities is very important to speed up-- proper analysis are very important to speed up the work at site. OK now let's discuss briefly the benefits and difficulties faced in this process. Faced difficulties of BIM implementation. Initial cost.

Basically, these initial cost can be identified in training. As we have said before, we have a sister company in Mumbai, so we have spent a lot of time in Mumbai making proper training to our Hindi colleague in order to perform what you have seen up to now. Then development. Also the development takes time, so it takes hours and take money. And obviously software.

We [INAUDIBLE] difficulties these sentences. I used to do like this, I used to look like that. Why I have to change my habits? Why I have to change my typical workflow? This is a difficult process to move people's minds in the innovation direction, you can say.

Another problem is the lack of expertise. Because OK, many people talk about BIM, talk about 3D modeling, but then on from the practical point of view are very less that push BIM for standardization, for data management, for achieving the real BIM values. And then the last point is new interfaces and new procedures. So this is linked to this point I used to do. So people have to feel comfortable with new procedure, with the new interfaces, but also new we can say job title inside the company.

Benefits of BIM implementation. As we have seen, visual access to data that is important. Because some data in an Excel spreadsheet is not the same like seeing those data on a 3D model. See for example the status, see for example all the information that a project manager can require for making his analysis.

This, if pushed in the proper direction, becomes a cost effective process because it reduces reworks. Let's think about, for example, the second issue, the change on drawings. If you change a drawing in 2D, you have to modify several, several views with the risk of inconsistency with one view and the other.

Instead with the BIM model, if obviously properly standardized, it becomes automatic. Then these support in-house coordination between discipline. And to design a complex object, like an industrial plant, coordination is too much important between disciplines. Then predict project problems.

As an example of the [INAUDIBLE] layout, BIM helped us predict the problem, anticipate the problem. And also reduced the cost of fixing one problem. Because if you fix one problem in site, it's different than predict it on a 3D model. Then improve communication. This helps communication not only inside the team itself, but also with the client and also with the subcontractor.

So speaking, watching the scope of work. I want to close my class with this quote. So don't be afraid about challenge, because the bigger the challenge, the bigger is the opportunity. And so let the challenge stimulate you, yourself, in doing always better and improving always more. Thanks and enjoy Autodesk university. Thank you very much.

Did you have any questions?

ELISA BACCHI: What is [INAUDIBLE]?

AUDIENCE: [INAUDIBLE] class. Great presentation. When you imported the Revit data to [INAUDIBLE] in to core symmetry, did you lose any of the intelligence behind the objects when you did that?

MARCO MELLACQUA: No, because I exported several formats, ZDF and MDB, that includes not only geometry but always also information. The only limitation is that it is just reference, we can say. It cannot be editable.

ELISA BACCHI: Yes?

AUDIENCE: And quick, first of all thank you very much for the presentation.

MARCO MELLACQUA: Thank you to you.

AUDIENCE: A 3D model [INAUDIBLE] when you come [INAUDIBLE]?

ELISA BACCHI: Yes.

AUDIENCE: How long did [INAUDIBLE] drawings [INAUDIBLE] format, you say? [INAUDIBLE]

ELISA BACCHI: Yes. At the moment, the client will not receive day by day updating of the month. We are not-- we are not [INAUDIBLE] the models during the engineering development phase. But we will transmit to him at the end of the process. Because in the contract, we have to realize with the client some fixed section at the 30%, 60%, and 90% of model review.

So one week closes in one room for reviewing all the projects. All the projects or all the [INAUDIBLE] part of the project through [INAUDIBLE] work. And therefore the listing in that phase, all the comments should be checked if it could be done or not done as per contract requirement. So practically, during the life of the project, during the engineering phase, we meet the client only three times.

And we have to show to then that we are able to solve everything before outlining the next step. This is because our client-- we are a main contractor and our contractor practically has a main scope of work in engineering, procurement material, and construction up to the final innovating of the plant after commissioning.

So practically, also at the end of the life cycle of the project, we have a tool list all the one function list. All the pointers should be sorted, also in site. So practically we are not transmitting the model, but we are adding these topic issues recently.

Because implementing the methodologies inside our company, now when we are in front of the situation or to subcontract or some ingenious scope of work to ask the subcontractor, obviously we had exchange the model day by day. So we are discussing for example, for another new BIM project that we are starting just now in Russia how to exchange, and so in that case we are developing a real BIM execution plan.

Estimation is the rule of these. And now we are investigating from both parties in which way we are ready to do these, because obviously we have a different product on the market for our work collaboration. And now we are investigating. We are too validating also this possibility or through Autodesk tool 360, BIM 360.

For example it could be an opportunity, and now we will see if we would like to test our through [? Bentley ?] project wise. Because we are discovering that, for doing these activities, we need to go in design collaboration.

AUDIENCE: So for [INAUDIBLE]?

ELISA BACCHI: Delivery of the model? For reviews yes, of course. We are using both the channels. For example in these latest cases, we are delivering also Revit. And between both parties and back to the design review, it will be done in [INAUDIBLE].

Because in [INAUDIBLE], we can manage and append all the files that are coming. For example, from pipe design, equipment design, inside merging it with a sea villa. Our [INAUDIBLE] of the model.

AUDIENCE: Can you supply any drawings to the customer, 2D drawings, in different steps? Like in [INAUDIBLE] steps? [INAUDIBLE]

ELISA BACCHI: No, the drawings.

MARCO MELLACQUA: Yes, there are-- OK, we can see three main steps for the drawing. One that is internal between us between Mumbai and Milan. One that is for client review, and one that is not for--

ELISA BACCHI: For client approval.

MARCO MELLACQUA: For client approval. And one for construction purpose.

ELISA BACCHI: And anytime with review the 2D drawings, so we have to submit again. So we have several channel of submitter, because we have to submit in that case the client to some contractor sites. And the contractor to partners. So it's-- I see no-- no, I see drawings issued for construction.

AUDIENCE: [INAUDIBLE]

ELISA BACCHI: Other question? Sir?

AUDIENCE: Just talking about different [INAUDIBLE] organization, how people react to [INAUDIBLE].

ELISA BACCHI: It was very, very hard way. We are running because in our culture, in industrial plants, we doesn't add these new rules. So practically we started to implement them and then the methodologies testing a lot for understanding they work flow.

And normally now that we have demonstrated that it is possible. And now that we are in operation, we have to finalize it very well also in front of our management, we are the rules of competence and the role of competence for each actor in BIM methodology.

And in these latest projects, the great goal that we are each is to have. For example for each civil subdiscipline, all the BIM coordinators in task force closed to the civil discipline leaders and other civil disciplines specialists to discussing step by step how to deliver the project through BIM methodology. So this was a very great--

MARCO MELLACQUA: Improvement.

ELISA BACCHI: --improvement. And now the traditional project team is discovering really the powerful tool of dedicated people inside the project. The next step will be to introduce a BIM coordinator in sight. And for managing the model in front of the construction. Because they are not ready to use the model in site in this kind of plant.

AUDIENCE: What was the determination for using Tekla for the structural rather than just [INAUDIBLE]?

MARCO MELLACQUA: Basically, client and vendor requirements.

ELISA BACCHI: Yes. And then another reason was that we started to use BIM tool in particular in 2008. And initially probably Tekla, that is the Tekla structure is very specialized in steel structure. It was more simple to use it for steel structures in off process and not process buildings. Now, frankly speaking, Revit and [INAUDIBLE] has a big evolution implementation. And it is only problem of--

MARCO MELLACQUA: Change data--

ELISA BACCHI: Change. Change, yes. But I think that it is possible to use also Revit. Yes?

AUDIENCE: Why did you merge all the data [INAUDIBLE]?

ELISA BACCHI: Yes, of course.

AUDIENCE: [INAUDIBLE]

MARCO MELLACQUA: BID? No, no. Is the referencing big modeling. This has not got through the environment. It is required to perform routings to check interfaces. That is the main purpose.

ELISA BACCHI: Because initially the plant has being modeled using only one tool, not interoperable. So the model activities inside the industrial plant has been started 30 years ago practically. So we did this dedicated tool. Now we are able to interpolate different tools based on live [INAUDIBLE] scope of work for example. And now the good challenge is to merge and whether it [INAUDIBLE] federated the 3D model plant.

AUDIENCE: You're finding [INAUDIBLE]?

ELISA BACCHI: Yes. Yes.

MARCO MELLACQUA: Yes.

ELISA BACCHI: And for doing this, we are giving value, economic value also to Revit and Tekla models, citing models. Because we will publish an issue also in the final delivery of the plant to the client. OK.

AUDIENCE: Do you do any automation on the [INAUDIBLE]? When you're concerned with [INAUDIBLE]? I mean you don't have any [INAUDIBLE].

MARCO MELLACQUA: Not [INAUDIBLE].

AUDIENCE: [INAUDIBLE]? So actual information in place of labels?

ELISA BACCHI: Maintenance. Now this is a [INAUDIBLE] important challenge to collect.

AUDIENCE: What about [INAUDIBLE]?

ELISA BACCHI: Yes. The name--

MARCO MELLACQUA: We are-- yes.

AUDIENCE: [INAUDIBLE] and then the password is a long metric. Why doesn't [INAUDIBLE] subsequent?

MARCO MELLACQUA: Basically there is no problem, frankly speaking. The reference is proper, it's accurate, so we don't face any particular issue. Some issue though on the paving, because of slopes or maybe sometimes the geometry is not that proper.

ELISA BACCHI: What we can say about this point, OK, we are modeling for example pressure type. Because we have the tools to show all the lines, the underground lines, all the system together in the output of the drawings. But in our process, considering that we can not export, they are-- the shop drawing, the ISO drawings are carted from our Revit model, ready for piping fabrication.

We have to practically remodel just the other day. Inside does not plan to be the side water system, for example. But this is because in our process we have not improved certain BIM implementation. This one is one of the-- not the lessons learned, but one of the key points for the next improvement off of the underground. And increased optimization between Revit phase up two is not planted in the phase.

AUDIENCE: Have your vendors had a role to play in the [INAUDIBLE]?

ELISA BACCHI: The vendor?

MARCO MELLACQUA: On a steep scope of work, yes.

ELISA BACCHI: Mechanical scope of work, yes. And obviously another challenge from our colleagues from piping department is to receive from vendor not only paper, but in their contract that we have to receive an equipment vendor ready to be modeled. Yes, ready to be implemented. Because now we are modeling equipment by our libraries. And--

MARCO MELLACQUA: Main should placement.

ELISA BACCHI: Main shape.

MARCO MELLACQUA: With attention.

ELISA BACCHI: Detail. With more detail we can improve also these, the managing of the information. And the interference between really the display with the hose with our, for example, anchor bolt located in the foundation. OK. If you have I think--

MARCO MELLACQUA: Please remember to fill the class feedback. And thank you to you all. Thank you very much.

ELISA BACCHI: If you have other questions we are out in front of this classroom.